Wrench.



L. LEER. WRENCH. APPLICATION FILED MAY 25, 1914.

1,1 13,903. Patented Oct. 13, 1914.

l jl l l l n Mull THE NORRIS PETERS CO. PHOTO-LITHQ. WASHINGTON. D,

LEoroLn Lesa, or NEW YO K, n. Y.

W MJ

To all whom it may concern Be it known that I, LEOPOLD LEE-R, a citizenof the United-States, residing at the borough of Bronx, in the county bfBronx and State of New York, have invented an Improvement in Wrenches,of which the following is a specification. y

My invention relates to adjustable wrenches, and itsobject is to providea tool of a character applicable to all purposes for which such devicesare employed, particularly useful in close quarters that cannot bereached'by the ordinary wrenches, andalso to lessen its cost and bulk orsize.

The details of construction are ter particularly described.

In the accompanying drawingzFigure '1 hereinafis a front elevation ofthe preferred form of my invention. Fig. 2is a side view of the same.Fig. 3 is a rear view of the same. Fig. 4 is a view similar to Fig. 2,withthe auxiliary or interchangeable jaws removed. Fig. 5 is a sectionon the broken lines, w, of Fig. 2. Fig. 6 is a section on the brokenline y, of Fig. 4. Fig. 7 is a front elevation showing a modificationwith the handle broken away. Fig. 8 is a side View of the same, and Fig.9 is a view similar to Fig. 8, but showing the f auxiliary jawsattached. In Fig. 1, the broken lines show the jaws fully extended andgrasping I a hexagonal nut. I

Similar reference characters indicate like parts throughout the severalviews f The stock and handle of my improved wrench are formed of onepieceofmetal. The elongated portion 10 is the handle. This has a rightangle bend 11, astraight portion 12 parallel with the handle portion andhaving a right angle bend 18 at its top. The bent portions 11 and 13 arethusspaced apart opposite each other. Each of these parts 11 and 13 areprovided with an opening in alinement with each other, inwhich isjournaled a screw 14, that portion of which coming between the parts 11and 13 is provided on one half with a right handed screw thread and onthe other half with a left handed screw thread. On each end of the screw14 there is a knurled head 15. The straight portion 12 of the stock isprovided with a longitudinal slot 16. y

In the preferred form of my invention, 17, 17, indicate two adjustablejaws, the shanks 18 of which pass through and are slidable in the slot16 of the part 12, each Specification of Iietters Patent. Aspirationfiled May 25, 1914'. Serial No. 840,706.

Patented. Oct. 13, 1914.

of the shanks 18 being provided it with a screw threaded hole to fit thethreads on the screw 14:. The jaws 17 thushave a simultaneous movementtoward or away from eachother, accordin tokthe manipulation of. theknurled heads 15. The gripping partsof the jaws are preferably madetriangular so as to fit nuts of different shapes.

19, =19, designate two auxiliary jaws, which are preferably somewhatlarger than the jaws 17. These auxiliary jaws are pro vided with angulargripping surfaces, and are attachedto the rear ends of the shanks 18 ofthejaws 17, by. screws 20; there being screwthreaded recesses21 on theends of the shanks 18 for this purpose. These auxiliary, jaws aretherefore interchangeable; one set may be removed" and another set ofdifferent size or shape substitutethand they are easily replaced ifeither or both jawsbecome worn orinjured in use. here the wrench isrequired for use in very close quarters, these auxiliaryjaws may bedetached fromthewrench, as shown in Fig. 4c.

In the modified forms shown in Figs. 7

'8 and 9, the stock and handle are made in one; piece with the samebends shown in the other figures; but in this case there is only oneadjustable jaw 17 and one sliding auxiliary jaw 19. In such case, theupper right angle bent portion- 13 is made thicker to forman upper fixedjaw 22, with a gripping surface corresponding with that of the loweradjustable jaw, the upper auxiliary jaw 19 being removably secured tothe upper end of the straight portion 12 by a screw or screws, in linethe knurled headsisrequired on the screw 14.. Theu per end of the screwhaving a smooth surface and journaled in an opening 2 L in the part 18in which it may be supported by a head 25, suitably secured to said end,there.

being a countersunk part surrounding said opening 24 to receive saidhead.

It is customary, especially for drivers of motor vehicles, to carry anumber of wrenches for use on nuts of different sizes and shapes, and itwill be readily seen that by the employment of my improved wrench, thisnecessity will be greatly, if not entirely,

overcome. 1

I claim as my invention:

1. An adjustable wrench having a stock consisting of a straight portionwith a right-angled bend at each end thereof opwithfthe fixed jaw 22. Inthis construction, only one of straigh portion double screw-threadedshanks extended into pro ecting oppositely disposed,

positely disposed, and an integral handle from one of said bendsparallel with said straight portion of the stock, a screw threaded shaftsupported between and by said right-angled bends, and oppositelydisposed jaws adapted to be either brought togetheror separated by meansof said screw threaded shaft.

2. In an adjustable and handle formed of a single piece of metal, saidstock having a straight portion and a right-angled bend at eachendthereof the handle portion projecting at right angles to one of saidbends and parallel with said straight portion, the combination of ascrew threaded shaft journaled in openings in said oppositely disposedbends, and oppositely disposed jaws having angular gripping surfaces.

3. In an adjustable wrench, the combination of a stock and handle formedof a single piece of metal, said stock having a provided with alongitudinal slot and a right angled bend at each k end oppositelydisposed, the handle portion projecting at right angles to one of saidbends parallel with said straight portion, a shaft journaled in openingsin said oppositely disposed bends, two jaws having oppositely threadedholes through which. said screw threaded shaft passes, said jaws beingprovided with integral said longitudinal slot in the stock and slidabletherein whereby said jaws are held in line as they are moved.

4. In an adjustable wrench, the combination of a stock and handle formedof a single piece of metal, said stock having a straight portionprovided with a longitudinal slot and, a right angled bend at each endoppositely disposed, the handle portion projecting at right angles toone'of said bends parallel with said straight portion, a double screwthreaded shaft journaled in openings in said oppositely disposed bends,two jaws provided with angular gripping surfaces and having oppositelythreaded holes through which said screw threaded wrench having a stockshaft passes, said jaws being provided with integral shanks extendedinto said longitudinal slot in the stock and slidable therein wherebysaid jaws are held in line as they are moved.

5. In an adjustable wrench, the combination of a stock and handle formedof a single piece of metal, said stock having a straight portionprovided with a longitudinal slot and a right angled bend at each endoppositely disposed, the handle portion projecting at right angles toone of said bends parallel with said straight portion, a double screwthreaded shaft journaled in openings in said oppositely disposed bends,two jaws having oppositely threaded holes through which said screwthreaded shaft passes, said jaws being provided with integral shanksextended into said longitudinal slot in the stock and slidable therein,whereby said jaws are held in line as they are moved, and auxiliary jawsdetachably secured to the ends of said shanks.

6. In an adjustable wrench, the combination of a stock and handle formedof a single piece of metal, said stock having a straight portionprovided with a longitudinal slot and a right angled bend at each endoppositely disposed, the handle portion projecting at right angles toone of said bends parallel with said straight portion, a double screwthreaded shaft journaled in openings in said oppositely disposed bends,two jaws provided with angular gripping surfaces and having oppositelythreaded holes through which said screw threaded shaft passes, said jawsbeing provided with 1ntegral shanks extended into said longitudinal slotin the stock and slidable therein, whereby said jaws are held in line asthey are moved, and auxiliary jaws having angular gripping'surfacesdetachably secured to the ends of said shanks.

Signed by me this 18th day of May, 1914.

LEOPOLD LEER.

Witnesses BERTHA M. ALLEN, J. 13. LE BLANO.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner 0! Patents,

' Washington, D. G.

